Does anyone know what command is invoked when you type :BB from the debugger? Is there a way to invoke this programmatically, capturing the output to a string? (i.e. what stream does the command print to? I'm _guessing_ *debug-io*, but you never know...) I want to basically wrap a handler which gets the current stacktrace to report errors "back home" when our app unexpectedly raises an error. Thanks.
Alain,
On Sunday, November 16, 2003, at 10:52 PM, Alain.Picard@memetrics.com
wrote:
> Is there a way to invoke this programmatically,
> capturing the output to a string? (i.e. what
> stream does the command print to? I'm _guessing_
> *debug-io*, but you never know...)
This is what I use:
(defmethod print-stack-backtrace ((error error) stream)
(declare (ignore error))
(let ((*debug-io* stream))
(dbg:with-debugger-stack ()
(dbg:bug-backtrace nil))))
Best,
John DeSoi, Ph.D.
* Alain Picard wrote: > Does anyone know what command is invoked > when you type :BB from the debugger? > Is there a way to invoke this programmatically, > capturing the output to a string? (i.e. what > stream does the command print to? I'm _guessing_ > *debug-io*, but you never know...) I use MP:MAP-PROCESS-BACKTRACE, to which you can pass a function to print or collect things. If you want to find out the actual bindings of things on colon commands you can look at the EXTRA-COMMANDS KW arg to SYS::%TOP-LEVEL. This is obviously very undocumented, but it seems to work (for instance my lw-commands hack uses this knowledge + advice on that function to add extra commands). For anyone at Xanalys: it would be cool to expose this interface. --tim